Hand-stamp



B. B. H'ILL. Hand Stamp.

(No Model.)

No. 239,779. Patented A rils, 1881.

;!FETE.RS, PnolmmHoGmPuan, WASHINGTON, D c.

UNITED STATES PATENT OFFICE.

-BENJAMIN B. HILL, OF SPRINGFIELD, MASSACHUSETTS.

HAN D-STAM P.

SPECIFICATION forming part of Letters Patent No. 239,779, dated April 5,1881.

Application filed January 29, 1881. (No model.)

To all whom it may concern Be it known that I, BENJAMIN B. HILL, ofSpringfield, in the county of Hampden and State of Massachusetts, haveinvented a new and useful I'mproy ement in Self-Inking Hand- Stainps,(which has not been patented to any person in any foreign country withmy knowledge and consent,) of which the following is a specification.

The object of my invention is to provide a cheap, effective, andeasily-operating handstamp, in which the ink shall be automaticallyapplied to the printing-characters of the stamp by the operation oftaking the imprint; and I accomplish this by the mechanism hereinafterdescribed, and illustrated in the accompanying drawings, in which-Figure I is a front view of my invention. Fig. II is a verticaltransverse section of the same at line C of Fig. I. Fig. III is avertical transverse section on the same line, showing the hand-piece andyoke partially moved down and the die-plate partly turned over, as inthe operation of taking an impression and Fig. IV is the same section onthe same line, but showing the handpiece and yoke forced entirely downand the die-plate wholly turned over, as in the operation of taking animpression from the printing-characters secured to the die-plate.

In the drawings, A represents the fixed frame, open at the bottom, witha vertical slot, 8, in each end, and with a recess, 6, made in theinside at one end,-in which is pivoted, at 5, a vibrating bar, 4, havingits upper and lower ends beveled or inclined on the side next the slot8, and provided at the lower end with a pin or stud, as 7 which projectsthrough a slot, 3, made in the ear 2 on one end of the die-plate F. Thisdie-plate is pivoted at each end to the lower ends of the yoke B, whichis provided with a stud, 9, on the upper part inside, and the slot '8 inone end of the fixed frame A extends up through the end of the ink-padD, so that the said stud 9 may pass down in said slot, whereverthehandpiece and yoke are forced down. The die-plate F is adapted toreceive any desired printing-characters on the side opposite that fromwhich the ear 2 extends, and the face of the die or printing-matter isheld up against the ink-pad D by a spring within the piston H, extendingup into the hand-piece G. t

The operation of the invention is as follows: When the stamp is notinuse the dieplate F is held by the elasticity of the spring within thepiston H, with the face of the printingcharacters thereon up againstthe'ink-pad D, whereby the ink is supplied, the position of the die Fbeing shown in Fig.1. As the handpiece and yoke B are forced down,however, the pivot 1 at one end of the yoke impinges against the lowerpart of the bar 4, below its pivot 5, and forces that end of the baraway from its position, covering the slot 8, and into its recess 6,carrying with it, by means of the stud 7, the ear 2; but as this outwardmovement of the lower end of the bar 4 is limited by the wall of itsrecess in the frame, and as the pivot 1 continues to move down themovement of the ear 2 commences to be a rotary one around the stud 7 asa pivot, and the latter changes its position in the slot 3 of the ear toa point quite near to the pivot 1, as shown clearly in Fig III, when thedie-plate F is then turned half its rotary movement in passing down. Asthe downward movement of the yoke B continues the stud 9 in the yoke B,passing down the slot 8, impinges against the upperend of the bar 4,(which has been thrown in by the outward movement of its lower end,) andthis contact of the stud 9 and upper end of the bar quickly throws inits lower end, carrying with it, of course, the ear of the die-plate,until, when the die-plate F has reached its extreme limit of 'downwardmovement, it has made exactly a half-revolution, the face of theprinting-characters being on a horizontal plane, and in aposition togive an impression.

It will be seen, as shown in Fig. IV, that the form of the bar 4 is suchthat when the stud 9 is hearing against the edge of said bar 4 the axisof the stud 7 at the lower end of said bar is in a vertical planepassing through the axes of the stud 9 and pivot 1, both in the slot 8.When the downward pressure upon the handpiece is removed the elasticityof the spring within the piston H causes the yoke B to move up again,and in passing up the stud 9 moves up out of contact with the edge ofthe bar 4, and the pivot 1, striking against the lower IOO inclined endof said bar, throws out its lower end, carrying out the ear 2 andcausing the die-plate F to revolve around the stud 7 as a pivot, and thepivot 1, after it passes the barpivot 5, strikes against the edge of thebar 4 and moves the lower end of said bar in again, and carrying in theear2 until the studs 9 and 7 and the pivot l are all in the samevertical plane, when the die-plate F is then in aplane parallel with thelower surface of the inkingpad D, and the printing-characters thereonare against said surface.

Any desired printing-matter may be secured to the die-plate, from whichto take an impression, and when arranged in this manner the machine isfree from complication, operates easily, is always supplied with inkready for printing, and when not in use the type or printing-cha metersare always protected from the accumulations of dust and dirt.

Having thus described my invention, what I claim as new is In aself-inking hand-stamp, the combination of a fixed vertically-slottedframe, a vibrating bar pivoted midway its length to said frame andprovided with a stud in its lower end, a yoke having a stud in its upperpart and a pin in its lower end, to operate against the edge of thevibrating bar, and a die-plate pivoted to the lower end of said yoke andprovided with a slotted ear, to receive and engage with the stud on thevibrating bar, whereby the said die-plate is operated in being suppliedWith ink, and in making the imprint, substantially as described. 7

BENJAMIN B. HlLL.

Witnesses:

'1. A. CURTIS, ()HAs. H. Woon.

